We really liked our stay here. We were in the apartment for two months and the actual apartment and apartment building is really beautiful. The staff who work there as well are so nice and helpful and the 7/11 is very convenient. It is also within walking distance of Thonglor (which is like the Upper East side of Bangkok) and is really cool. The swimming pool is huge and lovely and the gym is fab.
The cons though is if you are staying here a while, the apartment needs a hoover. It is very hard to keep the apartment clean without it, but that's a small fix. The other thing is I worked from home the whole time I was there and I actually find the apartment really uncomfortable. The table and chairs is very pretty but not comfortable and the settee is pretty uncomfortable as well. For sleep as well, the bed is the most uncomfortable of all. For at least the final month, I didn't have a single good night's sleep because the mattress and pillows are not good. For shorter term cons, the location is either good or bad depending on what you are looking for. If you are only here a short while and want to go to the shopping malls and experience the city a bit more and touristy locations, this is not the apartment for you. For the BTS, you need to get a scooter to it otherwise it is a 35 minute walk. But the area is good if you want to see a different part of Bangkok than just the touristy locations.
Overall, it was a pleasant stay and that top floor is really beautiful and a perfect place to work and chill in the evenings.